CA2598885A1

CA2598885A1 - Tank

Info

Publication number: CA2598885A1
Application number: CA002598885A
Authority: CA
Inventors: Otto P. Graf
Original assignee: Graf Plastics GmbH
Current assignee: Graf Plastics GmbH
Priority date: 2006-09-04
Filing date: 2007-08-24
Publication date: 2008-03-04
Anticipated expiration: 2027-08-24
Also published as: US20080053885A1; US7572372B2; ES2313521T3; SI1897814T1; ATE407069T1; EP1897814A1; NO20074415L; CA2598885C; DE502006001518D1; AU2007211881B2; AU2007211881A1; PL1897814T3; EP1897814B1

Abstract

In a tank B for water treatment, consisting of at least two plastic material tank parts 1, 2 produced by injection moulding or by injection moulding and embossing a separately produced separation wall T is mounted with the edge at the walls of the tank parts such that the mounting regions at least partly are watertight. The separation wall T
extends in the tank B crosswise to the joining plane E. The tank parts have opening edge structures R
which fit on each other and which are joined in the joining plane E in watertight fashion.

Claims

1. Tank (B) for water treatment, consisting of at least two open tank parts (1, 2) made from plastic material by injection moulding or injection moulding and embossing, the tank parts having opening edge structures (R) which fit on each other and which are joined to each other in a joining plain (E), and of at least one separately produced separation wall (T) which extends in the tank (B) crosswise to the joining plane (E), the separation wall (T) being supported at the edge at walls of the tank parts such that at least some peripheral regions are watertight, characterised in that the separation wall (T) is made from two, preferably, identical separation wall parts (T1, T2), which are joined to each other in the joining plane (E).

2. Tank according claim 1, characterised in that the tank parts (1, 2) are formed with several, preferably identical, separation wall mounting regions, preferably, alternating ribs and grooves (5, 6) defining equal separation wall mounting positions (P).

3. Tank according to claim 1,characterised in that separation wall mounting regions are situated in the walls of the tank parts in a direction along the joining plane (E) crosswise to the joining plane (E), preferably perpendicular to the joining plane (E).

4. Tank according to claim 1, characterised in that each separation wall part (T1, T2) is welded at the edge into one tank part (1, 2) and that the opening edge structures (R) of the tank parts (1, 2) and the separation gap (20) between the separation wall parts (T1, T2) respectively are joined by welding (26).

5. Tank according to claim 1, characterised in that each separation wall part (T1, T2) is inserted with at least one sealing at the edge into a tank part (1, 2), and that opening edge structures (R) of the tank parts (1, 2) and the separation gap (20) between the separation wall parts (T1, T2) are joined with sealing (16, 25) and fixation elements (24, 23, 14).

6. Tank according to at least one of the preceding claims, characterised in that the separation wall (T) or one separation wall part (T1, T2) is provided with at least one communication cut-out (A), which is situated at the edge and/or inside the edge, respectively.

7. Tank according to at least one of the preceding claims, characterised in that the separation wall (T) or the separation wall parts (T1, T2) are produced from plastic material by injection moulding or injection moulding and embossing, preferably from PE, PP, either without a reinforcement or with a fibre or mineral reinforcement.

8. Tank according to at least one of the preceding claims, characterised in that the separation wall (T) is provided with a stiffening waffle structure (22).

9. Tank according to at least one of the preceding claims, characterised in that a welding flange or sealing flange (18, 19) is provided along the edge of the separation wall (T) or the separation wall part (T1, T2) and of the separation wall parts (T1, T2), also along the joining gap (20).

10. Tank according to at least one of the preceding claims, characterised in that the tank (B) is formed substantially cylindrical from two identical tank parts (1, 2) having outwardly rounded end caps (7) by joining the tank parts (1, 2) in a joining plane (E) containing the cylinder axis (X), the joining plane (E), preferably, being substantially horizontal in the usage position of the tank (B), that the ribs and grooves (5, 6) are oriented in the tank parts (1, 2) perpendicular to the joining plane (E) and continue in one another over the joining plane (E), and that a round dome boss (3) having a flat covering disc (4) is formed into each tank part (1, 2) substantially radially to the cylinder axis (X), which covering disc (4) forms a flat portion of the cylinder, and such that the ribs and grooves are interrupted along the covering disc (4).

11. Tank according to claim 10, characterised in that the flat portion is prolonged between ribs (6) into several adjacent grooves (5) for defining separation wall mounting surfaces (F) which are flat and have equal length, and that the respective separation wall (T) is substantially a circular disc having two flat regions (17) in the circumference corresponding with the flat mounting surfaces (F).

12. Tank according to claim 11, characterised in that along the bottom of at least several grooves (5) and along at least several mounting surfaces (F) a respective profile (11), preferably a U-profile, is formed for selectively positioning either a sealing (27) or for welding the separation wall (T).

Tank according to at least one of claims 1 to 9, characterised in that the tank (B) is made from two identical cup-shaped tank parts (1, 2), which are joined in a joining plane (E) which, preferably, is situated substantially horizontally in the usage position of the tank, that the ribs and grooves (5, 6) are continued into each other in the joining plane (E) crosswise to the joining plane, and that a separation wall (T) is mounted in at least one of the grooves (5).